We’ve all been there: lost or late and trying to call someone to explain when, all of a sudden, the one bar of battery we were desperately clinging on to deserts us. Never again, thanks to these handy things. Lightweight and ultra-thin, the cases have a built in battery pack that can increase talk time by hours and standby time by days. It also comes with a micro USB cable so you can sync and charge your phone at the same time. And did we mention they look good and protect your phone, too? Time to connect with today’s deal.